Work gauge in fastening inserting machines



p B. 5. BLANCHARD 2,480,898

WORK GAUGE IN FASTENING INSERTING MACHINES Original Filed May 18, 1945 I s Sheets-Sheet 1 In Venfor R Benjamin BBZanc/zar-ci p 1949. B. B. BLANCHARD ,4

'WORK GAUGE IN FASTENING INSERTING MACHINES Original Filed May 18, 1945 5 Sheets-Sheet 2 in a r2 i0?" Ben a mz'nBBZanq/zara v 9 8y p 1949- B. B. BLANCHARD 2,480,898

WORK GAUGE IN FASTENING INSERTING MACHINES Original Filed May 18, 1945 3 Sheets-Sheet 3 lnvenlar Benjamin. BBZanc/mr'd Patented Sept. 6, p 1949 WORK GAUGE IN FASTENING INSERTING MACHINES Benjamin B. Blanchard, Swampscott, Mass., as-

signor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Original application May 18, 1945, .Serial No.

Divided and this application August 22, 1947, Serial No. 770,005

This invention relates to fastening inserting machines and is herein illustrated as applied to a shoe lasting machine of the type disclosed in application for United States Letters Patent Serial No. 594,448, filed May 18, 1945, issued as U. S. Letters Patent No. 2,454,302, on November 23, 1948, in myname, of which this application is a divisional. It is to be understood that the invention is not limited to use in machines of that particular character. 7

It is an object of the present invention generally to improve upon the operation of machines of the type referred to above and specifically to insure that the work is properly positioned in the machine, particularly that the portion of the shoe bottom where the fastening is to be inserted is located in proper position heightwise of the machine so that the wiper with which machines of this type are usually provided will not strike against the edge face of the bottom member of the shoe, for example, the insole, when moving outwardly of the machine to lay the tensioned marginal portion of the shoe upper inwardly over and against the insole.

To this end and in accordance with one feature of the invention, the illustrated machine is provided with a movable bottom gage adapted initially to engage the shoe bottom near the edge thereof, the bottom gage being moved inwardly over the shoe bottom by the fastening forming mechanism upon movement of the latter into fastening inserting position. Thus, the bottom gage acts to prevent the fastening forming mechanism from striking against the edge face of the insole in moving into its fastening insertin position over the shoe bottom.

These and other features of the invention will now be described in detail with reference to the accompanying drawings and will be pointed out in the appended claims.

In the drawings, 7

Fig. 1 is a right-hand side elevation of the head of a machine in which the present invention is illustrated as embodied, certain unessential parts being broken away;

Fig. 2 is a right-hand side elevation of the fastening forming mechanism and its actuating mechanism;

Fig. 3 is a front elevation of the machine head with unessential parts broken away; and

Fig. 4 is a right-hand side elevation of the bottom gage and part of the fastening forming mechanism in its operative staple inserting posi-. tion.

' As previously stated, the'invention is illustrated 4 Claims. (o1. 1-20) as embodied. in a machine of the type disclosed in my above-mentioned application for Letters Patent and accordingly only so much of that machine will be disclosed herein in detail as is necessary for an understanding of the present invention.

The machine illustrated in the drawings, the same as the machine disclosed in the above-mentioned application for Letters Patent, is adapted to tension progressively a shoe upper U (Figs. 2 and 4) over a last L along opposite sides thereof and, if desired, around the toe end of the last, to wipe the marginal portion of the upper inwardly over a sole member, such as an insole I, provided on the bottom of the last L, and to secure that marginal portion in overlasted relation to the insole, by fastenings, such as wire staples. The work to be operated upon, and comprising the upper U, the last L and the insole I, is held in the operator's hands and successive portions of the margin of the shoe upper are presented to the operating instrumentalities of the machine to be tensioned over thelast and to be secured in lasted relation to the insole by the staples. To determine the proper position of the work with relation to the operating instrumentalities of the machine, the latterv is provided with a shoe bottom rest 20 (Fig. 1) which is secured to the machine frame, a thin edge gage 22 which is employed when lasting the sides of the work, and a thick edge gage .24 which is employed when lasting around the toe end of the work. As in the prior machine, the thin edge gage 22- is secured to a bracket 26 fast on the machine frame, whereas the thick edge gage 24 is slidably mounted on the bracket 26 and is manually movable into and out of operative position for use in place of the thin edge gage 22.

In addition to the two edge gages 22 and 24 there is provided a movable bottom gage 28 (Figs. 2 and 4). In its initial position the bottom gage 28 positions that portion of the shoe bottom, near the edge thereof, where a fastening is to be inserted accurately heightwise of the machine.

For tensioning the upper heightwiseof the last there is provided a gripper 30 (Fig. 1) and for laying the marginal portion of the upper inwardly over the insole I there is provided awiper 32 (Figs. 2 and 4) which is arranged for movement outwardly of the machine and inwardly over the shoe bottom, the wiper 32 also functioning as a fastening transferrin throat since it serves the additional purpose of moving the formed fastening into position to, be inserted by a driver 34. To prevent the wiper or throat 32 on outward movement from abutting the insole edge face, the bottom gage 2B is provided. In moving outwardly of the machine, the wiper 32 is caused to engage the bottom gage 28 and to move the bottom gage outwardly of the machine and inwardly over the shoe bottom.

The fastening inserted by ,the machine is a staple which is formed in the machine from a piece of wire severed by a wire severing mechanism from the leading end portion of a wire strand after a predetermined and adjustable length of wire has been fed by a wire feeding mechanism into a fastening forming mechanism. The wire feeding mechanism (not shown) is of the conventional type and serves intermittently to advance the wire strand a predetermined length through a flexible wire guiding conduit 36 (Fig. 3) into the fastening forming mechanism.

The fastening forming mechanism is substantially the same as the fastening forming mechanism disclosed in the above mentioned application for Letters Patent. Its main elements are the already mentioned wiper or throat 32 to which is imparted one horizontal reciprocation outwardly and inwardly of the machine during one cycle of operations, an inside staple former 38 and an outside staple former 40 (Figs. 2 and 4). The fastening forming mechanism'including the throat 32 and the formers 38 and 40, is carried on a slide 42, hereinafter called the throat slide. The throat slide 42 is movable inwardly and outwardly of the machine in a guideway provided in the machine frame.

As in the machine of the above-mentioned application for Letters Patent, the driver 34 is secured to the lower end of a driver bar 52 (Fig. 1) which is raised by a cam (not shown) against the resistance of a torsion spring (not shown) and which is released by the cam to the action of the loaded torsion spring to insert a staple into the work, the staple being contained in the throat or -wiper'32 and the staple inserting movement of the driver taking place after the slide 42 and the throat 32 have completed their forward movements outwardly of the machine during which the wiper or throat 32 has laid the tensioned marginal portion of the upper U inwardly over and flat against the insole I. The wiper 32 has a passageway for guiding the driver 34 and the staple. In order to aline the driver 34 with the passageway of the wiper 32, the throat slide 42 is provided with an adjustable abutment 54 (Figs. 1 and 2) engaging the driver bar 52 on outward movement of the throat slide 42 and swinging the driver bar outwardly of the machine. To determine the foremost position of the driver bar 52 in the machine there is provided a bar 56 adjustably secured to the machine frame and provided with a laterally deflected end portion acting as a stop for the driver bar 52.

The bottom gage 28, as already mentioned, is movable inwardly and outwardly of the machine. It extends laterally from a slide 234 (Fig. 2) to which it is secured. The slide 234 has a T-shaped guide rib 236 (Fig. 3) fitting into a T-shaped horizontal guideway 238 provided in a bracket 50 secured'to the machine frame so that the slide 234 with its bottom gage 28 may be moved with relation to the bracket 50. The slide 234 has extending laterally therefrom a pin 24!] to which is secured the front end of a spring 242 the rear end of which is anchored to the machine frame. The spring 242 thus tends to pull the slide 234 inwardly of the machine until a downward projection 244 (Figs. 2 and 3) of the slide 234 engages a lateral projection 246 provided on a rod 248 mounted for adjustment in a horizontal bore provided in the machine frame and held in adjusted position by a setscrew 250. When the throat slide 42 and with it the wiper or throat 32 is advanced outwardly of the machine, it engages thebottom gage 28 and pushes it and its slide 234 outwardly of the ma chine and inwardly over the shoe bottom. When the wiper 32 is again retracted, the spring 242 becomes active to pull the slide 234 and the bottom gage 28 back into their initial positions.

Before starting the operation of the machine the operator presents the work to the machine in a position determined by the edge gage 22 (or the edge gage 24), the bottom rest 20 and the bottom gage 28. The marginal portion of the shoe upper U is inserted between the open jaws of the gripper 30. Thereafter the machine operation is initiated as a result of which the upper is tensioned by the gripper 30 and the throat slide 42 is advanced. Thus the wiper 32 is caused to lay the margin of the upper inwardly over and against the insole, thereby also pushing the gage 28 inwardly over the shoe bottom. After the driver 34 has descended to drive the staple into the work and then has been retracted again, the throat slide 42 is again withdrawn, thus returning the machine parts into their initial positions.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening inserting machine having fastening forming means and a fastening inserting driver movable relatively to a shoe to fasten the shoe upper to a sole member, an edge gage for determining the operative position of the shoe in the machine and a bottom gage associated with said fastening forming mechanism, the bottom gage initially engaging the shoe bottom near the edge thereof and thereafter being moved inwardly over the shoe bottom on movement of the fastening forming means into fastening inserting position.

2. In a fastening inserting machine having fastening forming means and a fastening inserting driver movable relatively to a shoe to fasten the shoe upper to a sole member, an edge gage for determining the operative position of the shoe in the machine, a movable bottom gage, and means for holding the bottom gage in an initial position in which it engages the shoe bottom near in location, the bottom gage being moved inwardly over the shoe bottom by the fastening forming means upon movement of the latter into fastening inserting position, and a spring for retracting the bottom gage into its initial position upon retraction of the fastening forming means from its fastening inserting position.

4. In a fastening inserting machine having fastening forming means and a fastening inserting driver movable relatively to a shoe to fasten the shoe upper to a sole member, an edge gage ing the bottom gage into its initial position upon retraction of the fastening forming means from its fastenin inserting position, and an adjustable stop for determining the initial position of 5 the bottom gage.

BENJAMIN B. BLANCHARD.

No reference cited. 

